Guarantee Conditions For The Epa Emission Standard - Yanmar 3TNV Series Service Manual

1. General

1.6.3 Guarantee Conditions for the EPA Emission Standard

The following guarantee conditions are set down in the operation manual. In addition to making sure
that these conditions are met, check for any deterioration that may occur before the required periodic
maintenance times.
(1) Requirement on engine installation condition
(a) Intake air depression
Initial
<= 2.9(300)
(b) Exhaust gas back pressure
Engine type
Naturally aspirated engines
4TNV98T, 4TNV106T
3,4TNV84T
(2) Fuel oil and lubricating oil
(a) Fuel: The diesel fuel oil US No.2 diesel fuel oil.
(b) Lube oil: API grade, class CD or CF
(3) Do not remove the seals restricting injection
quantity and engine speed.
kPa(mmAq)
Permissible
<= 6.23 (635)
Initial
<= 12.7(1300)
<= 9.8(1000)
<= 4.9(500)
20
kPa (mmAq)
Permissible
<= 15.3(1560)
<= 11.7(1200)
<= 5.9(600)